<aside> 📖 3-way handshake

1. SYN
   • The clients sense to synchronize message.
2. SYN/ACK
   • The server response of a syn msg and also acknowledges the client’s syn, or a synchronize, acknowledge message.
3. ACK
   • The client responds by acknowledging the service synchronize. </aside>

<aside> 📖 TCP port

¥Tells the computer software which application to deliver data to.

Web server usually on port 80

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<aside> 📖 Forwarding table

Consists of a set of IP addr patterns and the links that send across for each pattern

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